Schematic FILE  &d&&d&&&DD^=& VCC000&0000&0&n0@0nn0dn000 &GND@nnnn$na^=R-121k&nAS^=D11N4148#!^=C21UF#!^=C11UF#^=C51UF#!^=C41UF#^=C31UFV^@ ^=U2MAX23214DIP300\ A@ ^=P0DB9FEMELLE_RS232DB9F00N0,@,@DD^=FZZZdZPFd&F&dF GND POWERRESISTORDIODE CAPACITOR POL CAPACITOR POL CAPACITOR POL CAPACITOR POL CAPACITOR POLMAX232 CONNECTOR DB9 GND POWER